Stealing underwear, sometimes regarded as more serious when done in a sexual context.

A variety of laws aim to protect children by making various acts with children a sex crime. For example, the "Corruption of Minors" by introducing age-inappropriate material, esp. of a sexual nature, is often a misdemeanor but can lead to a felony charge. These can include Age of Consent laws, laws preventing the exposure of children to pornography, laws making it a crime for a child to be involved in (or exposed to) certain sexual behaviors, and laws against child grooming and the production and ownership of child pornography (sometimes including simulated images). In some countries such as the UK, the age for child pornography is higher than the age of consent, hence child pornography laws also cover images involving consenting adults.

Non-consensual sadomasochistic acts may legally constitute assault, and therefore belong in this list. In addition, some jurisdictions criminalize some or all sadomasochistic acts, regardless of legal consent and impose liability for any injuries caused. (See Consent (BDSM))